CVE-2026-75091 (GCVE-0-2026-75091)

Vulnerability from cvelistv5 – Published: 2026-08-18 05:31 – Updated: 2026-08-18 05:31
VLAI
Title
Quill Forms <= 5.7.1 - Unauthenticated Stored Cross-Site Scripting
Summary
The Quill Forms | Conversational Multi Step Forms, Surveys & quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.7.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Impacted products
Vendor Product Version CPE status
mdmag Quill Forms | Conversational Multi Step Forms, Surveys & quizzes Affected: 0 , ≤ 5.7.1 (semver)
guessed Create a notification for this product.
Credits
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Quill Forms | Conversational Multi Step Forms, Surveys \u0026 quizzes",
          "vendor": "mdmag",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
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          "type": "finder",
          "value": "daroo"
        }
      ],
      "descriptions": [
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          "value": "The Quill Forms | Conversational Multi Step Forms, Surveys \u0026 quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.7.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T05:31:20.989Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7ae927b1-401f-4227-9d50-4adde8e95f24?source=cve"
        },
        {
          "url": "https://patchstack.com/database/wordpress/plugin/quillforms/vulnerability/wordpress-quill-forms-plugin-5-7-1-cross-site-scripting-xss-vulnerability"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-14T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Quill Forms  \u003c= 5.7.1 - Unauthenticated Stored Cross-Site Scripting"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-75091",
    "datePublished": "2026-08-18T05:31:20.989Z",
    "dateReserved": "2026-08-17T16:37:28.282Z",
    "dateUpdated": "2026-08-18T05:31:20.989Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-75091",
      "date": "2026-08-18",
      "epss": "0.00194",
      "percentile": "0.0945"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-75091\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-08-18T06:16:44.227\",\"lastModified\":\"2026-08-18T06:16:44.227\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Quill Forms | Conversational Multi Step Forms, Surveys \u0026 quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.7.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"mdmag\",\"product\":\"Quill Forms | Conversational Multi Step Forms, Surveys \u0026 quizzes\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"5.7.1\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://patchstack.com/database/wordpress/plugin/quillforms/vulnerability/wordpress-quill-forms-plugin-5-7-1-cross-site-scripting-xss-vulnerability\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/7ae927b1-401f-4227-9d50-4adde8e95f24?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
  }
}



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